Dark Matter Could Be Hiding Out as Atom-Sized Black Holes. “Black holes the size of an atom that contain the mass of an asteroid may fly through the inner solar system about once a decade”…and we can theoretically detect them through planetary wobble.
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Comments 1
The sci fi writer Larry Niven (his later stuff turned sort of grotesque and dark and politically questionable, but his stuff from the 70s was kind of great) has a short story "The Borderland of Sol." In it, someone figures out that the Tunguska Event was caused by a primordial black hole, and then sets out to find it.....
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